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Production of Pseudotyped Particles to Study Highly Pathogenic Coronaviruses in a Biosafety Level 2 Setting
Published on: March 1, 2019
Henipavirus membrane fusion and viral entry
Hector C Aguilar1, Ronald M Iorio
1Department of Veterinary Microbiology and Pathology, Paul G. Allen School for Global Animal Health, College of Veterinary Medicine, Washington State University, Pullman, WA 99164-7010, USA. haguilar@vetmed.wsu.edu
Current Topics in Microbiology and Immunology
|March 20, 2012
Summary
Nipah virus (NiV) and Hendra virus (HeV) cause severe disease through cell fusion. Understanding their membrane fusion mechanisms is key to developing antiviral therapies against these dangerous henipaviruses.
Area of Science:
- Virology
- Molecular Biology
- Cell Biology
Background:
- Nipah virus (NiV) and Hendra virus (HeV) are highly pathogenic paramyxoviruses causing severe disease in humans and animals.
- Cell-cell fusion (syncytia) is a critical process in henipavirus infection, essential for viral entry and spread.
- Understanding the molecular mechanisms of henipavirus-induced membrane fusion is vital for developing effective antiviral strategies.
Purpose of the Study:
- To review the current understanding of henipavirus membrane fusion mechanisms.
- To highlight similarities and differences with other Paramyxoviridae genera.
- To identify knowledge gaps in henipavirus pathobiology and potential therapeutic targets.
Main Methods:
- Review of existing literature on henipavirus G and F glycoproteins.
- Analysis of henipavirus-induced cell-cell fusion models.
- Examination of the role of ephrinB2 and ephrinB3 as henipavirus receptors.
Main Results:
- Henipavirus membrane fusion is a coordinated process involving the viral attachment (G) and fusion (F) glycoproteins.
- Receptor binding by the G protein triggers conformational changes in the F protein, initiating fusion.
- EphrinB2 and ephrinB3 have been identified as cellular receptors mediating henipavirus entry and fusion.
Conclusions:
- Recent advances have significantly improved our understanding of henipavirus membrane fusion.
- Further research is needed to fully elucidate the intricate mechanisms and identify novel therapeutic interventions.
- Comparative analysis with other paramyxoviruses provides insights into conserved and unique fusion strategies.
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